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PennyRail DNS A-Record Resolver
x402
PennyRail DNS A-Record Resolver is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Resolves a domain name to its IPv4 address(es) via a paid DNS A-record lookup
Price / call$0.003
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object containing the resolved IPv4 address or addresses associated with the provided domain name, based on DNS A-record lookup.
Example use cases
Verify server IP before deployment
“What IP address does api.mycompany.com resolve to right now? I want to confirm the DNS is pointing at the right server before we go live.”
Detect domain hijacking or misconfiguration
“Can you look up the current IP address for login.mybank.com? I need to verify it hasn't been redirected to an unexpected server.”
Automate network connectivity checks
“Resolve the hostname database.internal.corp for me — I need the IPv4 address so my agent can test connectivity to that service.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/network/dns.a--resolve-domain-ipWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call DNS A-record resolution without managing your own DNS resolver infrastructure. Ideal for AI agents needing on-demand IP lookups as part of automated workflows, security checks, or network diagnostics, especially when operating in environments where direct DNS queries are unavailable or restricted.
Side effects
- Domain does not exist (NXDOMAIN) — returns error or empty result
- Domain has no A record (e.g. AAAA only) — may return empty
- Network or upstream DNS resolver timeout
- Invalid or malformed domain name input — returns validation error
- Payment failure or insufficient USDC balance — request rejected with 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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